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What is the calculation for combustion chamber pressure at the beginning of the exhaust stroke?
Wiki User
∙ 16y ago
Since the exhaust valve opens before the exhaust stroke begins, there should be very little pressure by then. But a clogged catalytic converter or muffler would increase the pressure. Also a turbo charger would increase the pressure.
To exactly calculate it would require comprehensive aerodynamic modeling of the complete exhaust system and engine passage way shapes, sizes, timing and RPM.
Not only would one need to know the drag and size of each part of the exhaust path, the resonant characteristics would need to be modeled as well.
This is a dreadful poor answer. Please replace with a better one. -Jesse
Wiki User
∙ 16y ago
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